CO2 tablets provide a quick and convenient way to dose your aquarium with a timed-release source of CO2 gas - no bottle or regulator needed. Use one tablet per day for each 8 gallons of water. One bottle will last a 10 gallon tank up to 100 days! Quick and easy way to provide CO2 in your aquarium. Helps stabilize pH and combat nuisance algae. 100 tablets.
JBJ CO2 TABLETS 100/ BOTTLE